Separator.



Patented sept. la', |900;

M. r. WILLIAMS.

S E P A R A T 0 R.

Application med Jan. so, 1399.)

(No Model.)

Ill) finir/r9 ward to be discharged falls into trough J,

ness required of Vsufficient iineness L in the opposite direction from that which conducting said material to any desired point or receptacle into which the finished material is finally received. Openings-m are arranged in the bottom of trough J Vslightly in advance of the dischargeopeiugs of chambers 2, 3, 'and 4 with respect to the direction of' travel of screw K, said openings discharging into .trough L` and being controlled by slides m'. AIt is contem-- plated that the heavier particles whigh fall into chamberl will nevel-beef sum'cient {lnethe duished material, `and for that reason no provision has been' made for introducing the same into the dischargetrough L. It the material falling into chamber 2 is of sufficient iineness, theslide m' in advance thereof is opened, so that screw K instead of returning said verizer will carry the same where it will drop through into the trough and be conducted otf by the 'screw M. If, however, the material in chamber 2 is'not of foriinished material, said slide'in advance of its opening is closed, and screw K will thereupon carry the same oninto the pulverize-rr. The same is alike true with respect to chamber B-that is, if the material falling thereinto is of suicient iineness the slidein advance of said chamber permits said material to fall intothe trough L and be carried 0E, or ii.' the material is not of suilcient fineness the slide is closed to permit saidmaterial to be returned to the pulverizer. The same to the opening m,

hoppe is true with relation to chambers/i.

The airafter having dropped most of its particles in passing through chamber F still contains'iine particles, which, as before de 1 scribed, may bepassed through a dust-collector, (shown in dotted lines,) which discharges the collected dust into trough'L, to be finally takento a receptacle for the iinshed product, or a pipe N may be employed in lieu of a dust-collector, through which the dust-laden air is conducted back to the eye ately forced upward again 'to reconduct the of the pulverizer. .I

The high speed at whichthe pulverizer operates will 'induce' a strong current of air through pipe N, and such suction is utilized fine particles of dust back tothe pulverizer, whence they are immedithrough spout E to pass through chamber E and fall into any of the receptacles provided therefor.

While I have shown a pulverizer which inl itself creates ablast, of air used in .carrying the particles into the separator, still it is obvious that the pulverizer could discharge into a spout, which spoilt led into a fan,said fan deliverin g theparticles in a forced blast -into the separator,and,furthermore,where the finished particles arereceived in the several compartments instead of providing a' return-conveyor and switching said particles ofi from said return-conveyer to an outcarr'ying-conveyer it material to the. pul- L` cles through the opening in the dead-eddy in the thus assisting of the path of the direct current of air, and i so renderingthe separator more efllcient.

" In the event that it is Idesired to admit sir vinto the return-pipe N,I ,govide thesame with one or more slides n. hen these slides the back pressu iti the separat- ;rcing the parti, bottoms of are open, ing-chamber is directed in the several receptacles.

I am aware that minor struction, arrangement, and combination of the several parts oi' my device can be made and substituted for those herein4 shown and described without in the least depantin from the nature and principle of my invent on.

Having thus described my inveution,"what .I claim, and desire to secure by Letters Pain ent, is

1.- The combination with'a pulverizer of the type described, of a'separatingcharnber F. a spout E,1eading"1nto the chamber F, adjustable partitions H dividing said chamber into a number of separate compartments which areopen to each other over the tops of said partitions, a pipe N ,leading from the last compartment back into the eye of the `pulverizer, an air-gate n J communicating independently compartment into changesin 'the oonwith each chamber, partitions dividing said chamber into a number of separate compartments, a pipe Nleading from thel last compartment back to the eye of the pulverizer, anair-gate independently with each which trough, material falling intehaid comdirection, momentum v said particles to settle by removing them out" in said pipe, a trough 'forced by the 'pulverizer to the separtin -I which the material falling in said compartments is discharged, a screw therewith through openingsm, arranged inadvan oi the communica x15 ments, slides m for controlling the openingy Y.

'n in said pipe N, a trough J communicating L compartment, into rtments is discharged,a a conveyor in said troughedapted to convey the material from 1,

smoes t I 3 each comportment back to the puulverizer, a In testimony wherof I 'hereunto ax my sooond trotlgh oommlln'iet'ing with the rst signature, in the presence of two witnesses,

.trough throughopeugs arrangedin advance this 25th day of January, 1899.

of @excommunication between the first i .MILTON F. WILLIAMS.' 5 trough and eompartments,gatos for control- Witnesses:

.lug s'ad openings, and acogxvoyer inthe seo- F. R, CoRNWAIfL,

l ond trough., substantially as'doscribed WM. A. SCOTT. 

